Wall Street extends gains, Nasdaq up 1 percent

The Dow Jones industrial average <.DJI> was up 62.44 points, or 0.53 percent, at 11,871.23. The Standard & Poor's 500 Index <.SPX> was up 8.33 points, or 0.67 percent, at 1,246.58. The Nasdaq Composite Index <.IXIC> was up 27.36 points, or 1.04 percent, at 2,664.82.